About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
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Additive Manufacturing: Materials Design and Alloy Development IV: Rapid Development
|
Presentation Title |
Processing of Immiscible Iron-silver-materials via Laser Beam Melting |
Author(s) |
Jan Krüger, Malte Dreyer, Kay-Peter Hoyer, Mirko Schaper |
On-Site Speaker (Planned) |
Jan Krüger |
Abstract Scope |
Trace elements are well-suited for biomedical applications, as they offer natural substance uptake during degradation. Thus, iron-based alloys are promising due to their biocompatibility and adapted mechanical properties, but the degradation is insufficient. Previous approaches indicate increased degradation of iron with high manganese contents. Hence, efforts are required for the formation of noble phases promoting the cathodic dissolution of iron. By adding the antibacterial element silver, these phases can be created. As both elements are immiscible, it is feasible to manufacture this multi-material via laser beam melting (LBM). After degradation of the iron matrix, the remaining silver may cause undesirable complications, so that these phases must also be alloyed. Therefore, a moderate interaction between the matrix and the silver alloy is necessary to keep the alloy's properties.
Thus, the correlation between alloying elements and process parameters regarding microstructure, degradation, mechanical properties, and biocompatibility is determined for iron(-manganese)-silver-multi-materials processed by LBM. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, Biomaterials, Characterization |